The following is a guest post from our friends at POPSUGAR Fashion.

We can't pinpoint the exact moment it happened, but at some time, boyfriend jeans became a wardrobe classic. Want to argue? The laid-back style can be dressed up or down, has a ton of celebrity endorsements and can be worn by pretty much any generation. In other words, if you don't already own a pair, it's time to reconsider. Whether you're just setting out to buy your first pair or can already count a few in the closet, a little extra styling inspiration never hurts. As fashion week pulses on in Europe, we're taking a glance at the street style moments from New York, London and Milan to bring you seven different examples of how to style your denim. Visit POPSUGAR Fashion now for street style images to inspire a whole week of wear!

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